I took a chance because I desperately needed a clutch alignment tool and the FLAP store literally said "they don't exist". A 15mm hole is perfect. It fits perfectly on my 2005 911 Carrera M96/05 clutch and should fit all water cooled 911s from 1999-2005 (at least) without exception. There is nothing more to say about this tool. It is made of plastic and well suited for its purpose.
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